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High severity8.8NVD Advisory· Published Oct 25, 2021· Updated Jun 17, 2026

CVE-2021-34864

CVE-2021-34864

Description

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3 (49160). An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the WinAppHelper component. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13543.

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Affected products

3
  • Parallels/Desktop2 versions
    cpe:2.3:a:parallels:parallels_desktop:16.1.3:*:*:*:*:macos:*:*+ 1 more
    • cpe:2.3:a:parallels:parallels_desktop:16.1.3:*:*:*:*:macos:*:*
    • (no CPE)range: 16.1.3 (49160)
  • Parallels/Desktopv5
    Range: 16.1.3 (49160)

Patches

Vulnerability mechanics

References

1

News mentions

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